Threshing-machine.



s. G, GEORGE. THRESHING MACHINE.

APPLICATION FILED MAR.26, 1913.

1,1 10,768. Patented Sept. 15, 1914.

WITNESSES lNV/SNTOH f g fi 517M041 6. 650F662 ATTORNEYS THE NORRIS PETERS CO. PHOTO'LITHQ, WASHINGTUN. D C

ED i SAMUEL a. chosen, on comic, MONTANA.

' THRESI-IING-MACI-IINE.

Original application filed November 4, 1912, Serial No. 729,198. Divided and this application filed Mare 26, 1913. Serial No. 756,996.

To all whom it may concern: -1

Be it known that I, SAMUEL G, GEORGE, a citizen of the United States, and a resident of Conrad, in the county of Teton and State ofMontana, have made new and useful Improvements in Threshing-lvlachines, of which the following is a specification.

My invention is an improvement in threshingmachines, and has for its object to provide in a machine of the character specified, a means for dislodging the grain from the straw,so arranged that the grain will be first cost, upkeep, and the greatesttpossible;

twice acted upon, and wherein means is pro-v vided for adpustmg the said dlslodglng means to provide for different conditions,

and wherein there will result economy of axles 3, the former only being shown and board. or table 7 is arranged at the front designated by the reference numeral 3, each axle having wheels .5 journaled on theends thereof. The front axle 3 is pivoteclto a bolster -6, secured to the frame and a feed ofthe frame, above the foot board 8. The

the, concave. A, secondcylinder; 1.6, of smaller diameter than cylinder l2 is aror wires 11.

foot board 8 is secured at the outerends of" arms 9, hinged to the frame at 10, the arms being. suspended from the feed table by rods A cylinder 12 is journaled transversely of the frame, atthe inner end of the feed table, and a concave 13 is supported below the cylinder,bothcylinder and concave having the usual-teeth. An inclined plate v14 is arranged in front of the concave,

the lower end of the plate contacting with theforward edge of the concave, and asecondplate 15 inclined in the opposite direction to; plate 14 is arranged at the rear of Specification of Letters Patent. Patented Sept, 15 1914.

ranged behind cylinder 12, and a concave 17 is supported below the cylinder. The

front edge of the concave abuts against the rear end of plate 15.

The rear edge of concave 17 is above the forward and lower end of an endlescon veyer 18 supported on rollers or wheels 20.

on shafts 21, journaled in the frame.

hood 22, arc-shaped in cross section is arranged above and behind cylinder 16, for'. deflecting the grain onto the conveyer, and

aplate 25 isarranged below the upper run of. the said conveyer, at the front end thereof. q

The, concave 17 (issmaller than thecom cave 13, and the said' concave 17 has two rows of teeth 93 whiclrextend perpendicularly to the concave, and are capable of adj ustment toward and from the, cylinder 16. The-teeth 93-are mounted on a transverselyconcave plate 94, having its concave side upward; ;;The plate 94. has rearwardly extending arms 95 at itsends, and each arm' Headed is longitudinally slotted at 95*. pins96 are arranged on the frame for engaging the slots 95*, a pair of pins for each slot, andthe forward edge of each arm is toothed, as indicated at 97. A pinion 98 engages the teeth of each arm, and the pinions are on the ends of a shaft 99. The shaft 99 is oscillated by any suitable mechanism to oscillate the pinion 98. It will be evident that when the shaft is rotated, the pinions will move the arms in one or the other direction, to project the teeth. to a greater or less extent through the concave. I

The cylinder. 16 is a beater ratherlthan a cylinder. A, spreading plate 103 is arranged below concave 17, ininclined position, the i said plate inclining forwardly toward its lower end. A similar plate 104'is-arranged below the cylinder 12, the said plate inclining downwardly toward itsrrear end, and each of the plates 103-104 is provided with deflecting ribs, as shown, for evenly distributing the grain on the conveyer 27 ar-v ranged below the cylinders, a portion only thereof beingshown. e r The concave 18, as shown more particularly in Fig. 2,;is provided with grates 112, j two-grates being provided to permit the,

threshed grain to flow from, the concave into the hopper 113, the said hopper being directly below the concave. The rear end of the hopper extends far enough rearwardly, toreceive the grain falling through the rearmost grate, so that all of the grain that is beaten out by the first cylinder passes downwardly through the grates to the hopper. The concave 17 is also provided with a grate 114:, directly above the spreading plate 103-, and the grain beaten from the heads by the second cylinder passes through thegratell l of the concave 17, on to the spreading plate 103, from which it is delivered to the conveyer 27.

The concave 13 is hinged at its rear edge, as findicated at 23, while the front edge is held in the position shown in Fig, 1. With the grating of the concave on to the dis-' tributing plate 104:, and by the said plate the grain is distributed on the carrier"27., The

straw passes from the cylinder 12 to'the,

cylinder- 16, andthe' said cylinder {16 00- operates with the concave 17 to complete the, beating out of the grain,

It will be noted that on account of the difi'erence inlength between the casings for the cylinders 12 and'16, some-mechanism is necessary to. bridge the space between theadjacent ends of the said casings,v andplates 115 arearranged at such. points, one of the plates being shown in edge view in Fig-"1.

In the ordinary threshing "machine, the grain to be threshed is first passed through the cylinder, and a large portion of the grain is not dislodged from the husks. This grain passes through the machine .and

way of theelevator to the cylinder a second time where it is re-threshed. On account of .the failure to thoroughly dislodge the grain" by 1 the single cylinder construction, vibrating or shaking screens are necessary. The

' shock and jar from the vibrating and shaking screens soon tears a threshingmachinei to pieces.- I It isessential with the ordinary threshing machine to thoroughly'block thewh'eels and to brace the machine against vibration. in spite of the bracing and the Fblocking of thejwheels, there is a continual vibration of the machine when it is running.

' In the use of 'two cylinders however, one

arranged behind the other, the shaking screens may be omitted, and thevgrain may be threshed or separated by moving the grain over fixed screens. Instead of pass-' ing theunthreshed grain through the cylinder asecond'time as with the ordinary constructions, the present construction rovides two cylinders, one in rear of the ot er, the second cylinder performing the junction anachine. I H separate all of the grain from the hulls at single process and prevent absolutely the that in the ordinary machine is performed by'the first cylinder. Thus, the second cylinder relieves the first cylinder of a large portion of its double work. In addition,

the'two cylinders will entirely remove the grain from the hulls, and there is no necessity for shaking or vibrating screens or rat tlerakes and the like, used in the ordinary.

The two cylinders thoroughly slugging (or slowing down because of overcrowding the first cylinder with un-' threshed grain) permitting the single cylinder to take the bunches caused 'by slug-v ging and completely threshing them. It

is a fact that in a single cylinder machine, the first cylinder is very frequently almost stoppedby the bunches of un-threshed grain, and in addition, such bunches .very frequently are carried to the straw pile; also they contain a large amount of un-threshed grain." The; double cylinder construction, operating infcohnectiohwith the improvement, forming the subject-.matter ofiny prior application, Serial No; 7 29,198, forms a perfectly acting machine, and the use of the double cylinders permits the above-men tioned-improven1ent to complete the separa tion of the grai I claim; a I y ,1, In a threshing machine provided with separating mechanisrn 'and with an elevator t i for lifting the unthreshed grain from the separating mechanism,- a pair of cylinders arranged withtheir axes parallel and onein rear of the other, the rear cyli'nderbeing of greaterle'ngth thanthe first cylinder, and 7 the first cylinder delivering directly to the I second cylinder, and a concave cooperating with each cylinder,-the elevator delivering,v

to the second cylinder, the first cylinder "be.

, 2. In a threshingmachine providedwithseparating mechanism and with Yan elevator 2 ing ot-greater diameter than the second "cylinder. 1

for lifting the unt hreshed grain" fromthe separatingmechanism, Ofcylifidgrs.

arranged with their aXes-parallel and" one in, rear of the other, the rear cylinder-being of greater lengthfthan the first cylinder, and

the first cylinder delivering directly to the second cylinder, and concave cooperating I elevator delivering with each cylinder, the to the second cylinder.

3. In a'thres'hing machine, a cylinder, a

concave cooperating therewith, a second cylinder arranged behindthe'first cylinder and I at a higher level, said second cylinder being of greater length than the first cylinder, a concavecooperating with the second cylin der, said first named'con cave havingfalternately arranged longitudinally extending series of teeth and gratings, the second 0011- cave having longitudinally ezlztending alter} nate series of teeth and gratings, said teeth rear cylinder being of greater length than geing adjustable toward and from the cylinthe first cylinder.

4. In a threshing machine, a plurality of SAMUEL GEORGE 5 cylinders arranged one behind the other and 1 Witnesses:

With their axes parallel, the front cylinder R. FERGUSON, delivering directly to the rear cylinder, said O. M. PARSONS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' I Washington, D. 0. 

